mmc: sdhci-of-dwcmshc: remove redundant IS_ERR() check

The clk_disable_unprepare() function has internal protection against
ERR_PTR and NULL pointers (IS_ERR_OR_NULL). Remove the redundant
IS_ERR() check for bus_clk in dwcmshc_suspend() and in the error
path of dwcmshc_resume() to simplify the code.

Note that the clk_prepare_enable() call in dwcmshc_resume() must retain
its IS_ERR() check because clk_prepare() only handles NULL pointers,
not ERR_PTR.

No functional change intended.

Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Artem Shimko <a.shimko.dev@gmail.com>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
This commit is contained in:
Artem Shimko 2026-05-22 10:31:31 +03:00 • committed by Ulf Hansson
commit 423ab671bb